I expect the remedy in that situation would be to recommend that the speaker and offended person not discuss religion any further. The horror.
I guess it would be harder to deal with for someone giving a talk, but contrive away why it is necessary for a talk about python to make simple factual statements about various religions.
I guess it would be harder to deal with for someone giving a talk, but contrive away why it is necessary for a talk about python to make simple factual statements about various religions.